[1] : The Free On-line Dictionary of Computing (27 SEP 03)

error correcting memory
     
         ecm ram using some kind of error detection and
        correction edac scheme.  the two types of memory errors in
        ram especially dram are "soft" errors due to
        radiation-induced bit switching, and "hard" errors due to the
        unexpected deterioration of a memory chip.  soft errors do not
        indicate lasting damage to the memory board, but they do
        corrupt programs or data.  hard errors demand physical
        repairs.  single bit memory failures are the most common.  a
        hard single bit failure, such as that caused by a completely
        dead chip can be corrected by edac if each chip supplies only
        one bit of each word.  edac memory is the most common level of
        protection for minicomputers and mainframes whereas the
        cheaper parity protection is more common in microcomputers.
     
        clearpoint, "the designer's guide to add-in memory", third
        addition.
     
        1995-10-10
     
     
see also:
ram error detection and correction dram minicomputer mainframe microcomputer 

Error >> E Words
Error, definition of term: Error
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Memory >> M Words
Memory, definition of term: Memory
memory_pag1.html

Correcting >> C Words
Correcting, definition of term: Correcting
correcting_pag1.html

Memory Loss >> M Words
Memory Loss, definition of term: Memory Loss
memory+loss_pag1.html

Memory Manageme >> M Words
Memory Manageme, definition of term: Memory Manageme
memory+manageme_pag1.html

Memory Farts >> M Words
Memory Farts, definition of term: Memory Farts
memory+farts_pag1.html

Memory Protecti >> M Words
Memory Protecti, definition of term: Memory Protecti
memory+protecti_pag1.html

Memory Device >> M Words
Memory Device, definition of term: Memory Device
memory+device_pag1.html

Edo Memory >> E Words
Edo Memory, definition of term: Edo Memory
edo+memory_pag1.html

Shared Memory >> S Words
Shared Memory, definition of term: Shared Memory
shared+memory_pag1.html

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